Device for regulating tension of spindle-bands of spinning-frames.



Patented Jan. 1, I90}.

. I T. A. BOYD. DEVICE FUR REGULATING TENSION 0F SPINDLE BANDS 0F SPINNING FRAMES.

(Application filed me. 7, was.

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Patented Ian. I, I90I. T. A. BOYD; I DEVICE FOR BEGULAT ING TENSIONOF ,SPINDLE BANDS 0F SPINNING FRAMES.

(Application filed. Dec. 7, 1899.) (No Model.)

3 Sheats-Shaat 2,

INVENTOR M E I ,4 TTOHNEXY WITNESSES Mia M No. 665,056. I 6 Ptented Ian. I, 1901. T. A. BOY-D.

DEVICE FOR HEGULATING' TENSION 0F SPINDLE BANDS .OF SPINNING FRAMES.

(Application filed Dec. 7, 1899.)

(No Model.) 3 Sheets-Sheet 3.

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, UNrrnn STATES ZPATENT, @rrrcn.

THOMAS A. BOYD, or GLASGOW, SCOTLAND.

DEVICE FOR REGULATING TENSION 0F SPINDLE-BANDS OF SPINNING-FRAMES.

SPECIFICATION forming part of Letters Patent No. 665.056, dated January 1, 1901. Application filed December 7, 1899. Serial No. 739,555. (No model.)

To all whom zit may concern.-

Be it known that I, THOMAS ALEXANDER BOYD, a subject of the Queen of Great Britain and Ireland, and a resident of Glasgow,county of Lanark, Scotland, have invented Improvements in Spinning, Twisting, and Winding Frames for Fibrous Materials and in Regulating the Tension of Spindle-Bands for Same, of which the following is a specification.

This invention relates to improvements in spinning, twisting, and winding frames for fibrous materials and in regulating the tension of spindle-bands for same.

Accompanying this specification are three sheets of drawings.

Figure 1 is a side elevation of a cap-spindle, driving cylinder, swing lever, spindle rail, &c. Fig. 2 is a side elevation of a flier-spindle with swinging rail, showing means of tightening or slackening the bands by means of a shaft and cams. Fig. 3 is a side elevation of cap-spindle, swing-lever, and spindlerail, showing the means of slackening the bands and braking the spindles. Fig. 4 is a side elevation of a spindle with swinging rail and back-balance weight to tension the bands continuously. Fig. 5 is a view of a further modification.

My invention relates to means of regulating the tension of spindle-bands and of stopping groups of spindles by slackening the bands and braking the spindles.

Referring to Fig. 1 of the accompanying drawings, I shall first describe one arrangement of this part of my invention applicable to cap-frames in which the wharves are moved up and down by the lifting-rail, thus altering the distance from the wharves to the cylinder and the tension of the bands. In doing so I employ a central driving-cylinder 1, passing throughout the length of the frame. In front of the cylinder 1 and parallel with it I suspend a spindle-rail 2, fixed to the lower end of swinging arms 3, centered on the line 3', passing through the thread-eyes above the spinning or twisting bobbins 4. The spindlerail 2 carries the cap-spindles 5, with their bobbin-tubes and wharves '6, and also the lifting-rail7 and pokers 8. The bobbin-tubes and wharves 6 rest on and are moved up and down the cap-spindle 5 by't-he lifting-rail 7, which is supported on pokers 8, working in guides 9 in the spindle-rail 2. Behind the spindle-rail 2, supported on the framing, is a rocking traverse-shaft 10, which operates the pokers 8 and lifting-rails '7 by means of pulleys 11 and lifting-chains 12. As the spindle-wharves 6 are lifted upward by the traverse the bands in ordinary circumstances would become tighter and tighter. To overcome this difficulty, I place a cam-shaft 13 above the traverse-shaft and passing behind the swing-levers 3, which carry the spindlerail 2. of toothed wheels 14: and 15 with andis driven by the traverse-shaft, and so rocks in concert with it. Upon this rocking cam-shaft 13 I mount'cams 16, so formed as to move the swing-levers 3 and spindle-rails 2 farther from or nearer to the driving-cylinder 1, while maintaining the rails parallel with the This shaft 13 is connected by a pair cylinder, according to the height of the spin- 7 which change in the tension of the bands will be maintainedas the wharves move upward and downward. In case I should not want the means described for tightening and slackening the bands I dispense with the camshaft 13 and I place the earns 16 on the traverse-shaft 10, as illustrated in Fig. 5.

In a second arrangement, Fig. 2, in which the spindle-wharves are stationary, I employ the cam-shaft 13 and cams 16, as described and shown in Fig. 1'; but I do not gear the cam-shaft 13 with the traverse-shaft 10. I simply use it to swing and fix the spindlerails 2 outward or inward to tighten or slacken the bands.

In a third arrangement, Fig. 3, I'make a depression 17 in the cam 16 for the purpose' of slackening the bands. By means of a weight or otherwise the spindle-rail 2 is swung inward until the spindle-wharves are brought in contact with the brakes 18, which may be made elastic, fixed on the framing 19. In

this way the bobbins 4 on one side of a frame may be stopped when required without stopping the driving-cylinder.

In the fourth arrangement, Fig. 4, I employ swing-levers 3 and on a spindle rail 2,the same as in Figs. 1, 2, and 3; but these are held in position by the spindle-bands 20, which are continually tensioned by means of a weight or spring operating on the swing-levers, which maintains an equal tension on the bands whether the wharves are moved up'and down, as in Fig. 1, or stationary, as in Fig. 2.

The spindle-rail may be continuous or made in sections, each carrying a group of spindles, or each spindle may be carried on a separate rail or support which is actuated, as above described, to maintain the requisite tension on the driving-band.

In the whole of those arrangements there may be one band for each spindle or for two or more spindles, and one or more tin cylinders may be employed.

The second part of my invention refers to means of insuring that when the bands which drive the spindles are either sewed or knotted they shall be all one length, or nearly so. At present bands of those descriptions when put on are not equally stretched. To insure more equal length, I stretch the banding with a given strain, and while this strain is on I print or mark the band at fixed distances. Those distances may be feet or inches or may be the point in the band at which the sewing is made or the knot tied. For instance, if I require a hand one hundred inches long when strained with a weight of twenty pounds I print on the banding while it is strained two marks one hundred inches apart. The bands are tied or sewed up to those marks and are consequently all equally stretched. The printing may be done on banding before it is made up into balls, or the bands may be stretched, printed, and out 01f. When I print the two marks fora band in a length of band, I allow sufficient length beyond the printing for tying or sewing. The same remarkapplies to individual bands printed and cut off.

Having now particularly described and ascertained the nature of my said invention and .in what manner the same is to be performed,

I declare that what I claim is- 1. Aspinning, twisting or winding machine having a framing, driving-cylinder and spindles and a spindle-rail parallel to said cylinder and means for adjusting the rail toward or from the cylinder, while maintaining their parallelism, substantially as described.

2. Aspinning, twisting or winding machine having a framing and spindles and a movable spindle-rail in combination with means for moving the rail automatically to tighten or slackeu the spindle-driving band or bands.

3. A spinning, twisting or winding machine having a fram i ng,spi ndles and means for guiding the thread to the spindles, with a movable spindle-rail and means for movingit to tighten or slacken the spindle-driving band or hands, while maintaining a constant relation of the spindle to the said guiding means.

4. Aspinning,twistingorwindingmachine, having a framing, spindles with wharves, and mechanism for traversing the spindles up and down with a movable spindle-rail and means for automatically moving said rail in concert with the traverse to insure a regular tension of the driving band or hands.

5. Aspinning,twisting or winding machine, having a framing, driving-cylinder and spindles and a spindle-rail parallel to said cylinder and means for adjusting the rail toward and from the cylinder, while maintaining their parallelism, in combination with a brake to stop each spindle.

6. A spinning,twisting or winding machine, having a framing, driving-cylinder and spindles and a spindle-rail with swinging levers supporting said spindle-rail, whereby the latter may be moved toward or from said driving-cylinder, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

T. A. BOYD.

Witnesses:

THOMAS BLAIR, JAMES CUNNINGHAM. 

